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# -*- coding: utf-8 -*-
# Description: freeradius netdata python.d module
# Author: l2isbad
from base import SimpleService
from os.path import isfile
from re import findall
from subprocess import Popen, PIPE
# default module values (can be overridden per job in `config`)
priority = 60000
retries = 60
update_every = 15
directories = ['/bin/', '/usr/bin/', '/sbin/', '/usr/sbin/']
# charts order (can be overridden if you want less charts, or different order)
ORDER = ['authentication', 'accounting', 'proxy-auth', 'proxy-acct']
CHARTS = {
'authentication': {
'options': [None, "Authentication", "packets/s", 'Authentication', 'freerad.auth', 'line'],
'lines': [
['access-accepts', None, 'incremental'], ['access-rejects', None, 'incremental'],
['auth-dropped-requests', None, 'incremental'], ['auth-duplicate-requests', None, 'incremental'],
['auth-invalid-requests', None, 'incremental'], ['auth-malformed-requests', None, 'incremental'],
['auth-unknown-types', None, 'incremental']
]},
'accounting': {
'options': [None, "Accounting", "packets/s", 'Accounting', 'freerad.acct', 'line'],
'lines': [
['accounting-requests', None, 'incremental'], ['accounting-responses', None, 'incremental'],
['acct-dropped-requests', None, 'incremental'], ['acct-duplicate-requests', None, 'incremental'],
['acct-invalid-requests', None, 'incremental'], ['acct-malformed-requests', None, 'incremental'],
['acct-unknown-types', None, 'incremental']
]},
'proxy-auth': {
'options': [None, "Proxy Authentication", "packets/s", 'Authentication', 'freerad.proxy.auth', 'line'],
'lines': [
['proxy-access-accepts', None, 'incremental'], ['proxy-access-rejects', None, 'incremental'],
['proxy-auth-dropped-requests', None, 'incremental'], ['proxy-auth-duplicate-requests', None, 'incremental'],
['proxy-auth-invalid-requests', None, 'incremental'], ['proxy-auth-malformed-requests', None, 'incremental'],
['proxy-auth-unknown-types', None, 'incremental']
]},
'proxy-acct': {
'options': [None, "Proxy Accounting", "packets/s", 'Accounting', 'freerad.proxy.acct', 'line'],
'lines': [
['proxy-accounting-requests', None, 'incremental'], ['proxy-accounting-responses', None, 'incremental'],
['proxy-acct-dropped-requests', None, 'incremental'], ['proxy-acct-duplicate-requests', None, 'incremental'],
['proxy-acct-invalid-requests', None, 'incremental'], ['proxy-acct-malformed-requests', None, 'incremental'],
['proxy-acct-unknown-types', None, 'incremental']
]}
}
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
SimpleService.__init__(self, configuration=configuration, name=name)
self.host = self.configuration.get('host', 'localhost')
self.port = self.configuration.get('port', '18121')
self.secret = self.configuration.get('secret', 'adminsecret')
self.acct = self.configuration.get('acct', False)
self.proxy_auth = self.configuration.get('proxy_auth', False)
self.proxy_acct = self.configuration.get('proxy_acct', False)
try:
self.echo = [''.join([directory, 'echo']) for directory in directories if isfile(''.join([directory, 'echo']))][0]
self.radclient = [''.join([directory, 'radclient']) for directory in directories if isfile(''.join([directory, 'radclient']))][0]
except IndexError:
self.echo = []
self.radclient = []
self.sub_echo = [self.echo, 'Message-Authenticator = 0x00, FreeRADIUS-Statistics-Type = 15, Response-Packet-Type = Access-Accept']
self.sub_radclient = [self.radclient, '-r', '1', '-t', '1', ':'.join([self.host, self.port]), 'status', self.secret]
def check(self):
if not all([self.echo, self.radclient]):
self.error('Command radclient not found')
return False
if self._get_raw_data():
chart_choice = [True, bool(self.acct), bool(self.proxy_auth), bool(self.proxy_acct)]
self.order = [chart for chart, choice in zip(ORDER, chart_choice) if choice]
self.definitions = {k:v for k, v in CHARTS.items() if k in self.order}
self.info('Plugin was started succesfully')
return True
else:
self.error('Request returned no data. Is server alive? Used options: host {}, port {}, secret {}'.format(self.host, self.port, self.secret))
return False
def _get_data(self):
"""
Format data received from shell command
:return: dict
"""
result = self._get_raw_data()
return {k.lower():int(v) for k, v in findall(r'((?<=-)[AP][a-zA-Z-]+) = (\d+)', result)}
def _get_raw_data(self):
"""
The following code is equivalent to
'echo "Message-Authenticator = 0x00, FreeRADIUS-Statistics-Type = 15, Response-Packet-Type = Access-Accept" | radclient -t 1 -r 1 host:port status secret'
:return: str
"""
try:
process_echo = Popen(self.sub_echo, stdout=PIPE, stderr=PIPE, shell=False)
process_rad = Popen(self.sub_radclient, stdin=process_echo.stdout, stdout=PIPE, stderr=PIPE, shell=False)
process_echo.stdout.close()
raw_result = process_rad.communicate()[0]
except Exception:
return None
else:
if process_rad.returncode is 0:
return raw_result.decode()
else:
return None
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